CN108882089B - Receiver and mobile terminal - Google Patents

Receiver and mobile terminal Download PDF

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Publication number
CN108882089B
CN108882089B CN201810700511.2A CN201810700511A CN108882089B CN 108882089 B CN108882089 B CN 108882089B CN 201810700511 A CN201810700511 A CN 201810700511A CN 108882089 B CN108882089 B CN 108882089B
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China
Prior art keywords
driving
sound
diaphragm
mobile terminal
vibrating diaphragm
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CN201810700511.2A
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CN108882089A (en
Inventor
陈文龙
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Priority to CN201810700511.2A priority Critical patent/CN108882089B/en
Publication of CN108882089A publication Critical patent/CN108882089A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058Manufacture or assembly
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/10Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
    • H04R2201/105Manufacture of mono- or stereophonic headphone components

Abstract

The invention provides a receiver and a mobile terminal. The telephone receiver includes: a drive mechanism; the first vibrating diaphragm is positioned at one end of the driving mechanism, and the driving mechanism is used for driving the first vibrating diaphragm to vibrate and sound; the central hole of the first shell can be penetrated by the driving mechanism, and the open end of the first vibrating diaphragm is hermetically connected with the first shell; the second vibrating diaphragm is positioned at the other end of the driving mechanism, and the driving mechanism is used for driving the second vibrating diaphragm to vibrate and sound; and the central hole of the second shell can be used for the driving mechanism to pass through, and the open end of the second vibrating diaphragm is hermetically connected with the second shell. Therefore, the embodiment of the invention can realize the double-sided sound production of the mobile terminal, and compared with the prior art, the embodiment of the invention can effectively reduce the attenuation degree of sound, and the tone quality of the double-sided sound production of the mobile terminal can be effectively ensured.

Description

Receiver and mobile terminal
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a receiver and a mobile terminal.
Background
With the continuous development of communication technology, the popularity of mobile terminals such as mobile phones is higher and higher. At present, in some cases (for example, in a case that the mobile terminal is a dual-screen mobile phone), the mobile terminal needs to be capable of sounding on both sides (that is, both front and back sides can sound).
In order to achieve the above purpose, a currently common solution is to provide a receiver in the mobile terminal, wherein the front side and the back side of the mobile terminal share a front cavity, and sound emitted by the receiver is guided out from the front side and the back side of the mobile terminal respectively after passing through a front cavity channel. However, in the above solution, in order to take account of sound coming from both sides of the mobile terminal, the sound guiding channels between the receiver and the sound coming from both sides of the mobile terminal are long, and the sound generated by the receiver needs to be guided to both sides of the mobile terminal, which results in great sound attenuation and poor sound quality.
Disclosure of Invention
The embodiment of the invention provides a telephone receiver and a mobile terminal, and aims to solve the problems that in the prior art, the sound attenuation is large and the tone quality of the sound emitted by the mobile terminal is poor due to the scheme of realizing the double-sided sound emission of the mobile terminal.
In order to solve the technical problem, the invention is realized as follows:
in one aspect, an embodiment of the present invention provides a receiver, including:
a drive mechanism;
the first vibrating diaphragm is positioned at one end of the driving mechanism, and the driving mechanism is used for driving the first vibrating diaphragm to vibrate and sound;
the central hole can be penetrated by the driving mechanism, and the open end of the first diaphragm is hermetically connected with the first shell;
the second vibrating diaphragm is positioned at the other end of the driving mechanism, and the driving mechanism is also used for driving the second vibrating diaphragm to vibrate and sound;
and the central hole can be penetrated by the driving mechanism, and the open end of the second diaphragm is hermetically connected with the second shell.
In another aspect, an embodiment of the present invention provides a mobile terminal, including a first sound emitting cover and a second sound emitting cover disposed on two opposite sides of the mobile terminal, and further including:
in the telephone receiver, the first vibrating diaphragm in the telephone receiver is arranged opposite to the first sound-emitting cover body, and the second vibrating diaphragm in the telephone receiver is arranged opposite to the second sound-emitting cover body.
In the embodiment of the invention, two vibrating diaphragms are arranged in the telephone receiver, the sound generated by the vibration of each vibrating diaphragm only needs to be led out from one surface of the mobile terminal, the sound guide channel corresponding to each vibrating diaphragm is shorter, and the sound generated by the vibration of each vibrating diaphragm cannot leak (for example, leak into a back cavity) through the sealing connection of the two vibrating diaphragms and the two shells, so that the mobile terminal can realize double-sided sound emission.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a receiver according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following first explains a receiver according to an embodiment of the present invention.
It should be noted that the receiver provided by the embodiment of the present invention is applied to a mobile terminal. Specifically, the mobile terminal may be: computers (Computer), Mobile phones, Tablet Personal computers (Tablet Personal Computer), Laptop computers (Laptop Computer), Personal Digital Assistants (PDA), Mobile Internet Devices (MID), Wearable devices (Wearable Device), and the like. It should be noted that the mobile terminal may be a dual-screen mobile terminal or a single-screen mobile terminal, and for convenience of understanding, in the embodiments of the present invention, the case where the mobile terminal is a dual-screen mobile terminal is taken as an example for description.
Referring to fig. 1, a schematic structural diagram of a receiver provided in an embodiment of the present invention is shown. As shown in fig. 1, the receiver includes: a drive mechanism 10, a first diaphragm 20, a first housing 30, a second diaphragm 40, and a second housing 50.
The first diaphragm 20 is located at one end (upper end shown in fig. 1) of the driving mechanism 10, and the driving mechanism 10 is configured to drive the first diaphragm 20 to vibrate and generate sound.
Specifically, the first diaphragm 20 and the driving mechanism 10 may be arranged in a center; the driving mechanism 10 may be used to drive the first diaphragm 20 to vibrate in the vertical direction shown in fig. 1, thereby emitting sound. It should be noted that the driving mechanism 10 may drive the first diaphragm 20 to vibrate and generate sound in various specific implementations, such as a mechanical driving mode, an electromagnetic driving mode, etc., which are not listed here.
The center hole of the first housing 30 is adapted to allow the driving mechanism 10 to pass through, and the open end (the lower end shown in fig. 1) of the first diaphragm 20 is hermetically connected to the first housing 30.
Since the central hole of the first housing 30 is penetrated by the driving mechanism 10, a first leakage hole 60 is formed between the inner wall of the first housing 30 and the outer wall of the driving mechanism 10 for ventilation.
Alternatively, the first diaphragm 20 may include: a first ball top 21 and a first connecting member 22 connected; wherein, the first ball top 21 is used for vibrating and sounding under the driving of the driving mechanism 10; the first connecting member 22 and the first housing 30 may be connected by bonding or the like, and the surfaces of the first connecting member 22 and the first housing 30 are tightly attached to realize sealing.
It should be noted that the material of the first connecting member 22 may specifically be a Polyethylene terephthalate (PET), so that when the first ball top 21 vibrates to generate sound, the first connecting member 22 can elastically deform correspondingly with the vibration of the first ball top 21 to adapt to the position change of the first ball top 21.
The second diaphragm 40 is located at the other end (the lower end shown in fig. 1) of the driving mechanism 10, and the driving mechanism 10 is further configured to drive the second diaphragm 40 to vibrate and generate sound.
Specifically, the second diaphragm 40 and the driving mechanism 10 may be arranged in a center; the driving mechanism 10 may be used to drive the second diaphragm 40 to vibrate in the vertical direction shown in fig. 1, thereby emitting sound. It should be noted that the driving mechanism 10 may drive the second diaphragm 40 to vibrate and generate sound in various specific implementations, for example, a mechanical driving manner, an electromagnetic driving manner, and the like, which are not listed here.
The second housing 50 has a central hole through which the driving mechanism 10 passes, and an open end (upper end shown in fig. 2) of the second diaphragm 40 is sealingly connected to the second housing 50.
Since the central hole of the second housing 50 is penetrated by the driving mechanism 10, a second leakage hole 70 is formed between the inner wall of the second housing 50 and the outer wall of the driving mechanism 10 for ventilation.
Alternatively, the second diaphragm 40 may include: a second dome 41 and a second link 42 connected; wherein, the second dome 41 is used for vibrating and sounding under the driving of the driving mechanism 10; the second connector 42 and the second housing 50 may be connected by bonding or the like, and the surfaces of the second connector 42 and the second housing 50 are tightly attached to realize sealing.
It should be noted that the material of the second connecting member 42 may also be PET, so that when the second dome 41 vibrates to generate sound, the second connecting member 42 can elastically deform correspondingly with the vibration of the second dome 41 to adapt to the position change of the second dome 41.
The following describes the assembling method and the operation principle of the receiver according to the embodiment of the present invention with reference to fig. 2.
As shown in fig. 2, opposite sides of the mobile terminal (which may be considered as front and back sides of the mobile terminal) may be provided with a first sound-emitting enclosure 80 (which is assumed to be disposed on the front side of the mobile terminal) and a second sound-emitting enclosure 90 (which is assumed to be disposed on the back side of the mobile terminal), respectively. A plurality of sound guide holes can be respectively formed in the first sound outlet cover 80 and the second sound outlet cover 90, so that the first sound outlet cover 80 and the second sound outlet cover 90 have a sound guide function; the first sound-emitting enclosure 80 and the second sound-emitting enclosure 90 may also have decorative and dust-proof functions.
In addition, the mobile terminal may further include a main upper 100, a rear cavity 110, a main board 200, and a battery 300; wherein, the first sound-emitting cover body 80, the second sound-emitting cover body 90 and the main upper part 100 can be surrounded to form a cavity; the rear cavity 110 may be located between the first screen 120 and the second screen 130 which are oppositely arranged, the first screen 120 may be located on the front side of the mobile terminal, and the second screen 130 may be located on the back side of the mobile terminal; the main board 200 and the battery 300 may be located in the rear cavity 110.
During actual assembly, the whole receiver can be positioned in a cavity formed by the first sound emitting cover body 80, the second sound emitting cover body 90 and the main upper part 100 in an enclosing manner; the first housing 30 may be fixedly installed between the main upper 100 and the first screen 120; the second housing 50 may be fixedly installed between the main upper 100 and the second screen 130; the first diaphragm 20 may be disposed opposite the first sound-outputting enclosure 80, and the second diaphragm 40 may be disposed opposite the second sound-outputting enclosure 90. Thus, the first housing 30, the first diaphragm 20 and the first sound outputting enclosure 80 may enclose to form a first front cavity 140; the second housing 50, the second diaphragm 40, and the second sound outputting enclosure 90 may enclose a second front cavity 150.
It should be noted that, since the open end of the first diaphragm 20 is hermetically connected to the first housing 30, the open end of the second diaphragm 40 is hermetically connected to the second housing 50, the first front cavity 140 is isolated from the rear cavity 110, and the second front cavity 150 is also isolated from the rear cavity 110. In the embodiment of the present invention, two front cavities (i.e., the first front cavity 140 and the second front cavity 150) are provided in the mobile terminal corresponding to two diaphragms in the receiver, and the two diaphragms in the receiver share the same back cavity (i.e., the back cavity 110). It should be noted that, because of the sharing of the rear cavity 110, two rear cavities are not required to be arranged inside the mobile terminal, and a partition plate for separating the two rear cavities is not required to be arranged, so that the space inside the mobile terminal can be effectively saved, the thickness of the mobile terminal is reduced, and the lightness and thinness of the mobile terminal are ensured.
In the actual working process of the receiver, the driving mechanism 10 may drive the first diaphragm 20 to vibrate and generate sound, at this time, the sound generated by the vibration of the first diaphragm 20 may be guided out of the mobile terminal through the sound guide hole on the first sound emitting cover 80, so that the mobile terminal can realize front sound emission. Similarly, the driving mechanism 10 can also drive the second diaphragm 40 to vibrate and generate sound, and at this time, the sound generated by the vibration of the second diaphragm 40 can be guided out of the mobile terminal through the sound guide hole on the second sound emitting cover 90, so that the mobile terminal can realize reverse sound emission. Therefore, the mobile terminal can realize double-sided sound production.
In the telephone receiver provided by the embodiment of the present invention, the number of the vibrating diaphragms is two, the two vibrating diaphragms are respectively connected to the two housings in a sealing manner, and the two vibrating diaphragms are respectively disposed at two ends of the driving mechanism 10. During actual assembly, one diaphragm may be disposed near a front sounding position of the mobile terminal (i.e., a position where the first sounding hood 80 is located), the other diaphragm may be disposed near a back sounding position of the mobile terminal (i.e., a position where the second sounding hood 90 is located), and two front cavities isolated from each other may be formed in the mobile terminal corresponding to the two diaphragms. Thus, under the driving action of the driving mechanism 10, both diaphragms can vibrate; the sound generated by the vibration of one vibrating diaphragm can be guided out from the front sounding position of the mobile terminal through a very short sound guide channel so as to realize the front sounding of the mobile terminal; the sound generated by the vibration of the other diaphragm can be guided out from the back sound-emitting position of the mobile terminal through a very short sound guide channel so as to realize the back sound-emitting of the mobile terminal.
It can be seen that, in the embodiment of the present invention, two diaphragms are arranged in the receiver, sound generated by vibration of each diaphragm only needs to be guided out from one side of the mobile terminal, a sound guide channel corresponding to each diaphragm is short, and sound generated by vibration of each diaphragm cannot leak (for example, leak into the rear cavity 110) through the sealed connection between the two diaphragms and the two housings, so that the mobile terminal can achieve double-sided sound emission.
Alternatively, when the driving mechanism 10 simultaneously drives the first diaphragm 20 and the second diaphragm 40 to vibrate and generate sound, the first diaphragm 20 and the second diaphragm 40 are simultaneously close to the driving mechanism 10 or simultaneously far away from the driving mechanism 10.
As shown in fig. 2, when the driving mechanism 10 drives the first diaphragm 20 and the second diaphragm 40 to vibrate and generate sound at the same time, if one of the first diaphragm 20 and the second diaphragm 40 is close to the driving mechanism 10 and the other is far from the driving mechanism 10, for example, the first diaphragm 20 is close to the driving mechanism 10 and the second diaphragm 40 is far from the driving mechanism 10, a part of air between one end of the driving mechanism 10 and the first diaphragm 20 will flow into the rear cavity 110 through the first leakage hole 60, and a part of air in the rear cavity 110 will flow into between the other end of the driving mechanism 10 and the second diaphragm 40 through the second leakage hole 70. In this case, the change in the amount of air in the back chamber 110 is very small, which results in less total work being done to push the air during operation of the receiver, and therefore the volume of sound emitted due to the vibration of the first diaphragm 20 and the second diaphragm 40 is very small.
In view of this, in the embodiment, when the driving mechanism 10 drives the first diaphragm 20 and the second diaphragm 40 to vibrate and generate sound at the same time, the first diaphragm 20 and the second diaphragm 40 may move close to or away from the driving mechanism 10 at the same time, that is, the first diaphragm 20 and the second diaphragm 40 vibrate in the same phase. Thus, the amount of air in the back chamber 110 varies significantly, and the volume of sound generated due to the vibration of the first diaphragm 20 and the second diaphragm 40 is not too small.
It can be seen that, in the embodiment, the volume of the mobile terminal during double-sided sound production can be better ensured.
Alternatively, as shown in fig. 1, the drive mechanism 10 includes: the basin stand 11, the first driving assembly and the second driving assembly; wherein the content of the first and second substances,
the frame 11 includes a bottom plate 111, a first side wall 112 and a second side wall 113, the first side wall 112 is disposed on one side of the bottom plate 111 (for example, the upper side of the bottom plate 111 shown in fig. 1), the first side wall 112 and the bottom plate 111 surround to form a first accommodating cavity, the second side wall 113 is disposed on the other side of the bottom plate 111 (for example, the lower side of the bottom plate 111 shown in fig. 1), and the second side wall 113 and the bottom plate 111 surround to form a second accommodating cavity.
The frame 11 may be made of a metal material, and a section of the frame 11 may have an i-shaped structure, in which case, the frame 11 may also be referred to as an i-shaped YOKE.
First drive assembly installs in first holding chamber, and first drive assembly is used for driving first vibrating diaphragm 20 vibration sound production.
The second driving assembly is installed in the second accommodating cavity, and the second driving assembly is used for driving the second diaphragm 40 to vibrate and sound.
It should be noted that the driving manner used by the first driving assembly to drive the first diaphragm 20 and the driving manner used by the second driving assembly to drive the second diaphragm 40 may be the same or different.
It can be seen that in this embodiment, the overall structure of the drive mechanism 10 is very simple and easy to install.
Optionally, with continued reference to fig. 1, the first drive assembly may include: a first magnet 141, a first magnetic plate 142 (magnetic plate may also be generally referred to as washer), and a first voice coil 143.
Wherein, one end (lower end shown in fig. 1) of the first magnet 141 is fixedly connected with the bottom plate 111; the first magnetic conductive plate 142 is fixedly connected to the other end (the upper end shown in fig. 1) of the first magnet 141, and a first annular magnetic gap 15 is formed between the first magnet 141 and the first magnetic conductive plate 142 and the first side wall 112.
Specifically, the lower end of the first magnet 141 and the bottom plate 111 may be welded, and the upper end of the first magnet 141 and the first magnetic conductive plate 142 may also be welded.
The first voice coil 143 is disposed in the first annular magnetic gap 15, and an end (an upper end shown in fig. 1) of the first voice coil 143 away from the bottom plate 111 is fixedly connected to the first diaphragm 20.
Specifically, the first voice coil 143 and the first diaphragm 20 may be welded to each other.
Since the first annular magnetic gap 15 is formed between the first magnet 141 and the first magnetic conductive plate 142 and the first side wall 112, when a current signal (ac signal) passes through the first voice coil 143 disposed in the first annular magnetic gap 15, the first voice coil 143 receives a lorentz force and vibrates up and down due to the lorentz force. Because first voice coil 143 and first vibrating diaphragm 20 fixed connection, first vibrating diaphragm 20 can vibrate from top to bottom under the drive of first voice coil 143, and like this, first vibrating diaphragm 20 can be because vibration from top to bottom and the sound production.
It can be seen that, in this embodiment, the first driving component can implement the vibration sound production of the first diaphragm 20 by an electromagnetic driving manner, and the overall structure of the first driving component is very simple.
Optionally, with continued reference to fig. 1, the second drive assembly comprises: a second magnet 161, a second magnetic plate 162, and a second voice coil 163.
Wherein, one end (upper end shown in fig. 1) of the second magnet 161 is fixedly connected with the bottom plate 111; the second magnetic conductive plate 162 is fixedly connected to the other end (the lower end shown in fig. 1) of the second magnet 161, and a second annular gap 17 is formed between the second magnet 161, the second magnetic conductive plate 162 and the second side wall 113.
Specifically, the upper end of the second magnet 161 may be welded to the bottom plate 111, and the lower end of the second magnet 161 may be welded to the second magnetic conductive plate 162.
The second voice coil 163 is disposed in the second annular magnetic gap 17, and one end (the lower end shown in fig. 1) of the second voice coil 163 away from the bottom plate 111 is fixedly connected to the second diaphragm 40.
Specifically, the second voice coil 163 and the second diaphragm 40 may be welded to each other.
Since the second magnetic gap 17 is formed between the second magnet 161 and the second magnetic conductive plate 162 and the second side 113, when the second voice coil 163 disposed in the second magnetic gap 17 passes through the current signal, the second voice coil 163 may be subjected to the lorentz force and vibrate up and down under the lorentz force. Because second voice coil 163 and second vibrating diaphragm 40 fixed connection, second vibrating diaphragm 40 can vibrate from top to bottom under the drive of second voice coil 163, and like this, second vibrating diaphragm 40 can be because vibration from top to bottom and the sound production.
It can be seen that, in this embodiment, the second driving assembly can realize the sound production by the vibration of the second diaphragm 40 through an electromagnetic driving manner, and the overall structure of the second driving assembly is very simple.
It should be noted that, when the first driving assembly and the second driving assembly adopt the above-mentioned enumerated structures, if the first diaphragm 20 and the second diaphragm 40 are simultaneously close to or simultaneously far away from the driving mechanism 10, the current directions of the first voice coil 143 and the second voice coil 163 in fig. 1 should be opposite when viewed in a cross section. Specifically, in the case where the direction of the current on the first voice coil 143 is in, the direction of the current at the position corresponding to the second voice coil 163 should be out (white coil in fig. 1 indicates out, and black coil indicates in).
Optionally, the receiver satisfies at least one of:
the performance parameters of the first diaphragm 20 and the second diaphragm 40 are the same;
the first magnet 141 and the second magnet 161 have the same performance parameters;
the performance parameters of the first magnetic conduction plate 142 and the second magnetic conduction plate 162 are the same;
the performance parameters of the first voice coil 143 and the second voice coil 163 are the same.
The performance parameters of the first diaphragm 20 and the second diaphragm 40 may include an elastic modulus, a thermal expansion coefficient, a poisson's ratio, and the like, which are not listed here.
The performance parameters of the first magnet 141 and the second magnet 161 may include magnetic energy product, coercive force, temperature coefficient, and the like, which are not listed here.
The performance parameters of the first voice coil 143 and the second voice coil 163 may include a maximum outer diameter, a direct current resistance, a number of turns, etc., which are not listed herein.
In this embodiment, the same type of device in the receiver may use a device with the same performance parameter, and in this case, when the two diaphragms move in the same phase, if the currents passing through the two voice coils are the same, the performance parameters (e.g., displacement, speed, etc.) of the two diaphragms may also be the same, which is beneficial to balancing the air pressure in the mobile terminal.
In conclusion, the present embodiment can realize the double-sided sound emission of the mobile terminal, and compared with the prior art, the present embodiment can effectively reduce the attenuation degree of sound, and the sound quality of the double-sided sound emission of the mobile terminal can be effectively ensured.
The following describes a mobile terminal provided in an embodiment of the present invention.
Referring to fig. 2, a schematic structural diagram of a mobile terminal according to an embodiment of the present invention is shown. As shown in fig. 2, the mobile terminal includes a first sound-emitting cover 80 and a second sound-emitting cover 90 disposed on two opposite sides of the mobile terminal, and the mobile terminal further includes the above-mentioned receiver, wherein the first diaphragm 20 in the receiver is disposed opposite to the first sound-emitting cover 80, and the second diaphragm 40 in the receiver is disposed opposite to the second sound-emitting cover 90.
In the telephone receiver provided by the embodiment of the present invention, the number of the vibrating diaphragms is two, the two vibrating diaphragms are respectively connected to the two housings in a sealing manner, and the two vibrating diaphragms are respectively disposed at two ends of the driving mechanism 10. During actual assembly, one diaphragm may be disposed near a front sounding position of the mobile terminal (i.e., a position where the first sounding hood 80 is located), the other diaphragm may be disposed near a back sounding position of the mobile terminal (i.e., a position where the second sounding hood 90 is located), and two front cavities isolated from each other may be formed in the mobile terminal corresponding to the two diaphragms. Thus, under the driving action of the driving mechanism 10, both diaphragms can vibrate; the sound generated by the vibration of one vibrating diaphragm can be guided out from the front sounding position of the mobile terminal through a very short sound guide channel so as to realize the front sounding of the mobile terminal; the sound generated by the vibration of the other diaphragm can be guided out from the back sound-emitting position of the mobile terminal through a very short sound guide channel so as to realize the back sound-emitting of the mobile terminal.
It can be seen that, in the embodiment of the present invention, two diaphragms are arranged in the receiver, sound generated by vibration of each diaphragm only needs to be guided out from one side of the mobile terminal, a sound guide channel corresponding to each diaphragm is short, and sound generated by vibration of each diaphragm cannot leak through the sealed connection of the two diaphragms and the two housings, so that the mobile terminal can achieve double-sided sound emission.
Optionally, the mobile terminal further includes a first screen 120 and a second screen 130 which are oppositely disposed;
the first screen 120 is disposed on the same side of the first sound-emitting cover 80, and the second screen 130 is disposed on the same side of the second sound-emitting cover 90.
It is understood that the mobile terminal including the first screen 120 and the second screen 130 is embodied as a dual-screen mobile terminal, so that the present embodiment can implement a dual-screen sound output of the dual-screen mobile terminal.
Optionally, a back cavity 110 is disposed between the first screen 120 and the second screen 130;
the first housing 30, the first diaphragm 20 and the first sound outputting enclosure 80 enclose a first front cavity 140 isolated from the rear cavity 110;
the second housing 50, the second diaphragm 40 and the second sound outputting enclosure 90 enclose a second front cavity 150 isolated from the back cavity 110.
In this embodiment, two diaphragms can share the same back cavity (i.e., back cavity 110), and because of the sharing of back cavity 110, two back cavities do not need to be arranged inside the mobile terminal, and a partition board for separating the two back cavities does not need to be arranged, so that the space inside the mobile terminal can be effectively saved, the thickness of the mobile terminal can be reduced, and the lightness and thinness of the mobile terminal can be ensured.
Optionally, the distance between the drive mechanism 10 in the receiver and the first sound-emitting enclosure 80 is equal to the distance between the drive mechanism 10 and the second sound-emitting enclosure 90.
In this embodiment, since the distance between the driving mechanism 10 and the first sound emitting cover 80 is equal to the distance between the driving mechanism 10 and the second sound emitting cover 90, it can be considered that the driving mechanism 10 is specifically installed at the central position in the cavity (formed by the first sound emitting cover 80, the second sound emitting cover 90 and the main upper cover 100) of the mobile terminal, which is beneficial to ensuring that the structures of the first front cavity 140 and the second front cavity 150 are consistent, so that the audio performance of the mobile terminal is better.
In conclusion, the present embodiment can realize the double-sided sound emission of the mobile terminal, and compared with the prior art, the present embodiment can effectively reduce the attenuation degree of sound, and the sound quality of the double-sided sound emission of the mobile terminal can be effectively ensured.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (6)

1. The utility model provides a mobile terminal, including set up in the first sound-emitting cover body and the second sound-emitting cover body of the relative two sides of mobile terminal, its characterized in that still includes the receiver, the receiver includes:
a drive mechanism;
the first vibrating diaphragm is positioned at one end of the driving mechanism, and the driving mechanism is used for driving the first vibrating diaphragm to vibrate and sound;
the central hole of the first shell can be used for the driving mechanism to pass through, a first leakage hole for air circulation is formed between the inner wall of the first shell and the outer wall of the driving mechanism, and the open end of the first diaphragm is connected with the first shell in a sealing manner;
the second vibrating diaphragm is positioned at the other end of the driving mechanism, and the driving mechanism is also used for driving the second vibrating diaphragm to vibrate and sound;
the central hole can be penetrated by the driving mechanism, a second leakage hole for air circulation is formed between the inner wall of the second shell and the outer wall of the driving mechanism, and the open end of the second diaphragm is hermetically connected with the second shell;
when the driving mechanism simultaneously drives the first vibrating diaphragm and the second vibrating diaphragm to vibrate and sound, the first vibrating diaphragm and the second vibrating diaphragm simultaneously approach to the driving mechanism or simultaneously get away from the driving mechanism;
a first vibrating diaphragm in the telephone receiver is arranged opposite to the first sound-emitting cover body, and a second vibrating diaphragm in the telephone receiver is arranged opposite to the second sound-emitting cover body;
the mobile terminal also comprises a first screen and a second screen which are arranged oppositely; the first screen and the first sound outlet cover body are arranged on the same side, and the second screen and the second sound outlet cover body are arranged on the same side;
a rear cavity is arranged between the first screen and the second screen;
the first shell, the first diaphragm and the first sound outlet cover body are arranged in a surrounding mode to form a first front cavity isolated from the rear cavity;
the second shell, the second diaphragm and the second sound outlet cover body are arranged in a surrounding mode to form a second front cavity isolated from the rear cavity.
2. The mobile terminal of claim 1, wherein the drive mechanism comprises:
the basin stand comprises a bottom plate, a first side wall and a second side wall, wherein the first side wall is arranged on one side of the bottom plate in a surrounding manner, the first side wall and the bottom plate are arranged in a surrounding manner to form a first accommodating cavity, the second side wall is arranged on the other side of the bottom plate in a surrounding manner, and the second side wall and the bottom plate are arranged in a surrounding manner to form a second accommodating cavity;
the first driving assembly is arranged in the first accommodating cavity and used for driving the first vibrating diaphragm to vibrate and sound;
and the second driving assembly is arranged in the second accommodating cavity and is used for driving the second vibrating diaphragm to vibrate and sound.
3. The mobile terminal of claim 2, wherein the first drive assembly comprises:
one end of the first magnet is fixedly connected with the bottom plate;
the first magnetic conduction plate is fixedly connected with the other end of the first magnet, and a first annular magnetic gap is formed between the first magnet and the first magnetic conduction plate as well as between the first magnet and the first side wall;
the first voice coil is arranged in the first annular magnetic gap, and one end, far away from the bottom plate, of the first voice coil is fixedly connected with the first vibrating diaphragm.
4. The mobile terminal of claim 3, wherein the second drive assembly comprises:
one end of the second magnet is fixedly connected with the bottom plate;
the second magnetic conduction plate is fixedly connected with the other end of the second magnet, and a second annular gap magnetic gap is formed between the second magnet and the second magnetic conduction plate as well as the second side wall;
and the second voice coil is arranged in the second annular gap magnetic gap, and one end, far away from the bottom plate, of the second voice coil is fixedly connected with the second vibrating diaphragm.
5. The mobile terminal of claim 4, wherein the receiver satisfies at least one of:
the performance parameters of the first diaphragm and the second diaphragm are the same;
the performance parameters of the first magnet and the second magnet are the same;
the performance parameters of the first magnetic conduction plate and the second magnetic conduction plate are the same;
the performance parameters of the first voice coil and the second voice coil are the same.
6. The mobile terminal of claim 1, wherein the distance between the driving mechanism in the receiver and the first sound-emitting housing is equal to the distance between the driving mechanism and the second sound-emitting housing.
CN201810700511.2A 2018-06-29 2018-06-29 Receiver and mobile terminal Active CN108882089B (en)

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PCT/CN2019/091699 WO2020001323A1 (en) 2018-06-29 2019-06-18 Receiver and mobile terminal

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